There was never any thing by the wit of man so well devised, or so surely established, which (in continuance of time) hath not been corrupted: as (among other things) it may plainly appear by the common prayers in the Church, commonly called divine service: the first original and ground whereof, if a man would search out by the ancient fathers, he shall find that the same was not ordained, but of a good purpose, and for a great advancement of godliness: For they so ordered the matter, that all the whole Bible (or the greatest part thereof) should be read over once in the year, intending thereby, that the Clergy, and specially such as were Ministers of the congregation, should (by often reading and meditation of God's word) be stirred up to godliness themselves, and be more able also to exhort other by wholesome doctrine, and to confute them that were adversaries to the truth. And further, that the people (by daily hearing of holy scripture read in the Church) should continually profit more and more in the knowledge of God, and be the more inflamed with the love of his true religion.
From the Preface to the original Book of Common Prayer, 1549
The Episcopal Church in the United States is one of thirty-eight "provinces" that comprise the Anglican Communion-a body of some 77 million believers worldwide, that traces its structure, liturgy, and traditions back to the English Reformation in the sixteenth century. In 1886-1888, the bishops of the Anglican Communion identified four principles inherent in Anglicanism, which have become known as "The Chicago-Lambeth Quadrilateral". They offer of helpful basis for beginning to understand what Anglicanism is all about.